Java Code Examples for org.apache.commons.codec.binary.Base64

private SecretModel getBallerinaConfSecret(String configFilePath, String serviceName) throws
        KubernetesPluginException {
    //create a new config map model with ballerina conf
    SecretModel secretModel = new SecretModel();
    secretModel.setName(getValidName(serviceName) + "-ballerina-conf" + SECRET_POSTFIX);
    secretModel.setMountPath(BALLERINA_CONF_MOUNT_PATH);
    Path dataFilePath = Paths.get(configFilePath);
    if (!dataFilePath.isAbsolute()) {
        dataFilePath = KubernetesContext.getInstance().getDataHolder().getSourceRoot().resolve(dataFilePath)
                .normalize();
    }
    String content = Base64.encodeBase64String(KubernetesUtils.readFileContent(dataFilePath));
    Map<String, String> dataMap = new HashMap<>();
    dataMap.put(BALLERINA_CONF_FILE_NAME, content);
    secretModel.setData(dataMap);
    secretModel.setBallerinaConf(configFilePath);
    secretModel.setReadOnly(false);
    return secretModel;
}
 

private String getSshKey() throws Exception {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    keyPairGenerator.initialize(2048);
    KeyPair keyPair=keyPairGenerator.generateKeyPair();
    RSAPublicKey publicKey=(RSAPublicKey)keyPair.getPublic();
    ByteArrayOutputStream byteOs = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(byteOs);
    dos.writeInt("ssh-rsa".getBytes().length);
    dos.write("ssh-rsa".getBytes());
    dos.writeInt(publicKey.getPublicExponent().toByteArray().length);
    dos.write(publicKey.getPublicExponent().toByteArray());
    dos.writeInt(publicKey.getModulus().toByteArray().length);
    dos.write(publicKey.getModulus().toByteArray());
    String publicKeyEncoded = new String(
        Base64.encodeBase64(byteOs.toByteArray()));
    return "ssh-rsa " + publicKeyEncoded + " ";
}
 

public Object decrypt1(String password) throws Exception{
	initKey();
	try {
		byte[] srcBytes = encodeUTF8(password);
		byte[] desBytes = decrypt(Base64.decodeBase64(srcBytes), key2);
		String tempdecodeUTF8 = decodeUTF8(desBytes);
		if (tempdecodeUTF8.substring(0, appendString.length()).equals(appendString)){
			return tempdecodeUTF8.substring(appendString.length(),tempdecodeUTF8.length());
		}
		return password;
	}catch (Exception e){
		logger.debug(e.getMessage());
		return password;
	}

}
 

private byte[] readBase64Bytes(InputStream stream) throws IOException {
  StringBuilder builder = new StringBuilder();
  BufferedReader reader = new BufferedReader(new InputStreamReader(stream));

  String line;
  while ((line = reader.readLine()) != null) {
    line = line.trim();

    // read past ----BEGIN PRIVATE KEY and ----END PRIVATE KEY lines
    if (line.startsWith("-----BEGIN") || line.startsWith("-----END")) {
      continue;
    }
    builder.append(line);
  }
  return Base64.decodeBase64(builder.toString().getBytes());
}
 

/**
 * GZips and then base64 encodes an array of bytes to a String
 *
 * @param val
 *          the array of bytes to convert to a string
 * @return the base64 encoded string
 * @throws IOException
 *           in the case there is a Base64 or GZip encoding problem
 */
public static final String byteArrayToString( byte[] val ) throws IOException {

  String string;
  if ( val == null ) {
    string = null;
  } else {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream( baos );
    BufferedOutputStream bos = new BufferedOutputStream( gzos );
    bos.write( val );
    bos.flush();
    bos.close();

    string = new String( Base64.encodeBase64( baos.toByteArray() ) );
  }

  return string;
}
 

@Override
public synchronized String execute(SampleResult previousResult, Sampler currentSampler)
        throws InvalidVariableException {
    String sourceString = values[0].execute();

    String decodedValue = new String(Base64.encodeBase64(sourceString.getBytes()));
    if (values.length > 1) {
        String variableName = values[1].execute();
        if (variableName.length() > 0) {// Allow for empty name
            final JMeterVariables variables = getVariables();
            if (variables != null) {
                variables.put(variableName, decodedValue);
            }
        }
    }
    return decodedValue;
}
 

@Test
public void testSQSBase64() throws IOException {
    String desc = "{\n" +
            "    \"type\": \"sqs\",\n" +
            "    \"queues\": [\n" +
            "        \"queue1\"\n" +
            "    ],\n" +
            "    \"enableBase64Encoding\": true,\n" +
            "    \"region\": \"us-east-1\",\n" +
            "    \"connectionTimeout\": 3000,\n" +
            "    \"maxConnections\": 3,\n" +
            "    \"socketTimeout\": 1000,\n" +
            "    \"maxRetries\": 3\n" +
            "}";

    SqsTest sqsTest = new SqsTest(desc).invoke();
    ArgumentCaptor<SendMessageRequest> captor = sqsTest.getCaptor();
    Notice queueNotice = sqsTest.getQueueNotice();

    assertEquals(captor.getValue().getMessageBody(), new String(Base64.encodeBase64("message".getBytes()),
            Charsets.UTF_8));
    assertEquals(captor.getValue().getQueueUrl(), "queueURL");

    assertEquals(queueNotice.recv(), new String(Base64.decodeBase64("receivedMessage".getBytes()), Charsets.UTF_8));
}
 

protected void decode(JsonNode authNode) throws IOException {
  if (authNode == null) {
    return;
  }
  Map<String, String> authHeaders = new HashMap<String, String>();
  String authStr = authNode.asText();
  String authBase64Decode = new String(Base64.decodeBase64(authStr), "UTF-8");
  String[] auths = authBase64Decode.split("@");
  String[] akAndShaAkSk = auths[1].split(":");
  if (auths.length != EXPECTED_ARR_LENGTH || akAndShaAkSk.length != EXPECTED_ARR_LENGTH) {
    LOGGER.error("get docker config failed. The data is not valid cause of unexpected format");
    return;
  }
  String project = auths[0];
  String ak = akAndShaAkSk[0];
  String shaAkSk = akAndShaAkSk[1];
  authHeaders.put("X-Service-AK", ak);
  authHeaders.put("X-Service-ShaAKSK", shaAkSk);
  authHeaders.put("X-Service-Project", project);
  defaultAuthHeaders = authHeaders;
  loaded = true;
}
 

@PostMapping("refresh")
@ResponseBody
public Result authRefresh(@RequestBody EncodeRequestDTO authRequestEncode, HttpServletRequest request) throws Exception {
    String encodeData = authRequestEncode.getData();
    if (StrUtil.isEmpty(encodeData)) {
        throw new AuthException("参数为空");
    }
    AuthProperties.Sm2AuthProperties sm2Config = authProperties.getSm2();
    String data = null;
    try {
        data = new String(sm2.decrypt(Base64.decodeBase64(encodeData), sm2Config.getServerPrivateKey()), "UTF-8");
    } catch (Exception e) {
        log.error("认证服务解密异常:[{}],加密数据:[{}]", e, encodeData);
        throw new AuthException("认证服务解密异常");
    }
    AuthRefreshRequestDTO authRefreshRequestDTO = JSONUtil.parseObject(data, AuthRefreshRequestDTO.class);
    AuthResultWrapper resultWrapper = apiAccountAuthHelper.authRefresh(authRefreshRequestDTO, AuthType.SM2, request);
    return encodeResult(resultWrapper, sm2Config);
}
 

@Override
public String getHeader(String name) {
  if (HttpHeaders.AUTHORIZATION.equals(name)) {
    String authKey = null;
    if (!isNullOrEmpty(getRequest().getParameter(keyParam))) {
      authKey = format("%1$s:%1$s", getRequest().getParameter(keyParam));
    } else if (defaultApiKey.isPresent()) {
      authKey = format("%1$s:%1$s", defaultApiKey.get());
    } else {
      return null;
    }
    return format("Basic %s", Base64.encodeBase64String(authKey.getBytes()));
  } else {
    return super.getHeader(name);
  }
}
 

public static void main(String[] args) throws Exception {

      
      MessageDigest md = MessageDigest.getInstance(MessageDigestAlgorithms.MD5);
      md.update("texto a cifrar".getBytes());
      byte[] digest = md.digest();

      // Se escribe byte a byte en hexadecimal
      for (byte b : digest) {
         System.out.print(Integer.toHexString(0xFF & b));
      }
      System.out.println();

      // Se escribe codificado base 64. Se necesita la librer�a
      // commons-codec-x.x.x.jar de Apache
      byte[] encoded = Base64.encodeBase64(digest);
      System.out.println(new String(encoded));
   }
 

/**
 * Implementation method for authentication
 */
private String authenticate(Credentials credentials) throws AuthenticationException {
    if (!(credentials instanceof EsApiKeyCredentials)) {
        throw new AuthenticationException("Incorrect credentials type provided. Expected [" + EsApiKeyCredentials.class.getName()
                + "] but got [" + credentials.getClass().getName() + "]");
    }

    EsApiKeyCredentials esApiKeyCredentials = ((EsApiKeyCredentials) credentials);
    String authString = null;

    if (esApiKeyCredentials.getToken() != null && StringUtils.hasText(esApiKeyCredentials.getToken().getName())) {
        EsToken token = esApiKeyCredentials.getToken();
        String keyComponents = token.getId() + ":" + token.getApiKey();
        byte[] base64Encoded = Base64.encodeBase64(keyComponents.getBytes(StringUtils.UTF_8));
        String tokenText = new String(base64Encoded, StringUtils.UTF_8);
        authString = EsHadoopAuthPolicies.APIKEY + " " + tokenText;
    }

    return authString;
}
 

@Test
public void verifyFeaturesMatching() {
    byte[] screenshot = Base64.encodeBase64(driver.getScreenshotAs(OutputType.BYTES));
    FeaturesMatchingResult result = driver
            .matchImagesFeatures(screenshot, screenshot, new FeaturesMatchingOptions()
                    .withDetectorName(FeatureDetector.ORB)
                    .withGoodMatchesFactor(40)
                    .withMatchFunc(MatchingFunction.BRUTE_FORCE_HAMMING)
                    .withEnabledVisualization());
    assertThat(result.getVisualization().length, is(greaterThan(0)));
    assertThat(result.getCount(), is(greaterThan(0)));
    assertThat(result.getTotalCount(), is(greaterThan(0)));
    assertFalse(result.getPoints1().isEmpty());
    assertNotNull(result.getRect1());
    assertFalse(result.getPoints2().isEmpty());
    assertNotNull(result.getRect2());
}
 

public static String encrypt(String payload, String key) {

        try {
            byte[] keyBytes = sha256(key);
            byte[] ivBytes = Arrays.copyOf(keyBytes, 16);

            Cipher cipher = Cipher.getInstance(ALG_TRANSFORMATION);
            cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(keyBytes, ALG), new IvParameterSpec(ivBytes));

            byte[] encrypted = cipher.doFinal(payload.getBytes(StandardCharsets.UTF_8));
            return Base64.encodeBase64URLSafeString(encrypted);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }
 

/**
 * AES 解密操作
 * @param content
 * @param password
 * @return
 */
public static String decrypt(String content, String password) {

    try {
        //实例化
        Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);

        //使用密钥初始化，设置为解密模式
        cipher.init(Cipher.DECRYPT_MODE, getSecretKey(password));

        //执行操作
        byte[] result = cipher.doFinal(Base64.decodeBase64(content));

        return new String(result, "utf-8");
    } catch (Exception ex) {
        Logger.getLogger(AESUtil.class.getName()).log(Level.SEVERE, null, ex);
    }
    
    return null;
}
 

@Override
public String decrypt(AwsParamsDto awsParamsDto, String base64ciphertextBlob)
{
    // Construct a new AWS KMS service client using the specified client configuration.
    // A credentials provider chain will be used that searches for credentials in this order:
    // - Environment Variables - AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
    // - Java System Properties - aws.accessKeyId and aws.secretKey
    // - Instance Profile Credentials - delivered through the Amazon EC2 metadata service
    AWSKMSClient awsKmsClient = new AWSKMSClient(awsHelper.getClientConfiguration(awsParamsDto));

    // Decode the base64 encoded ciphertext.
    ByteBuffer ciphertextBlob = ByteBuffer.wrap(Base64.decodeBase64(base64ciphertextBlob));

    // Create the decrypt request.
    DecryptRequest decryptRequest = new DecryptRequest().withCiphertextBlob(ciphertextBlob);

    // Call AWS KMS decrypt service method.
    DecryptResult decryptResult = kmsOperations.decrypt(awsKmsClient, decryptRequest);

    // Get decrypted plaintext data.
    ByteBuffer plainText = decryptResult.getPlaintext();

    // Return the plain text as a string.
    return new String(plainText.array(), StandardCharsets.UTF_8);
}
 

public String send() throws GSSException {
    byte[] sendData;
    if (gssContext == null) {
        Assert.isTrue(token == null, "GSS Context not yet initialized. Client must be the initiator.");
        gssContext = gssManager.createContext(servicePrincipalName, spnegoOID, userCredential, GSSCredential.DEFAULT_LIFETIME);
        sendData = gssContext.initSecContext(new byte[0], 0, 0);
    } else if (token != null) {
        sendData = gssContext.initSecContext(token, 0, token.length);
        token = null;
    } else {
        throw new EsHadoopTransportException("Missing required negotiation token");
    }

    if (sendData == null) {
        return null;
    } else {
        return new String(Base64.encodeBase64(sendData), StringUtils.UTF_8);
    }
}
 

/** Constructor to use when message contents are known */
NTLMMessage(String messageBody, int expectedType) throws AuthenticationException {
    messageContents = Base64.decodeBase64(EncodingUtils.getBytes(messageBody,
            DEFAULT_CHARSET));
    // Look for NTLM message
    if (messageContents.length < SIGNATURE.length) {
        throw new AuthenticationException("NTLM message decoding error - packet too short");
    }
    int i = 0;
    while (i < SIGNATURE.length) {
        if (messageContents[i] != SIGNATURE[i]) {
            throw new AuthenticationException(
                    "NTLM message expected - instead got unrecognized bytes");
        }
        i++;
    }

    // Check to be sure there's a type 2 message indicator next
    int type = readULong(SIGNATURE.length);
    if (type != expectedType) {
        throw new AuthenticationException("NTLM type " + Integer.toString(expectedType)
                + " message expected - instead got type " + Integer.toString(type));
    }

    currentOutputPosition = messageContents.length;
}
 

/**
 * Generates secure random bytes of the given length and return base 64 encoded bytes as url safe String. This is not the length of the
 * resulting string!
 * @param numberOfBytes
 * @return
 */
public static String getSecureRandomUrlSaveString(final int numberOfBytes)
{
  final SecureRandom random = new SecureRandom();
  final byte[] bytes = new byte[numberOfBytes];
  random.nextBytes(bytes);
  return Base64.encodeBase64URLSafeString(bytes);
}
 

@Override
public int read(byte[] b) throws IOException {
    int numRead = super.read(b);
    if (numRead > 0) {
        byte[] copy = b;
        if (numRead < b.length) {
            // isBase64 checks the whole length of byte[], we need to limit it to numRead
            copy = Arrays.copyOf(b, numRead);
        }
        if (!Base64.isBase64(copy)) {
            throw new IOException("Data is not base64 encoded.");
        }
    }
    return numRead;
}
 

private EsToken getCred(String key, Map<String, String> credentials) {
    EsToken token = null;
    String serializedToken = credentials.get(key);
    if (serializedToken != null && !serializedToken.equals("placeholder")) {
        byte[] rawData = Base64.decodeBase64(serializedToken);
        try {
            token = new EsToken(new DataInputStream(new FastByteArrayInputStream(rawData)));
        } catch (IOException e) {
            throw new EsHadoopException("Could not deserialize EsToken", e);
        }
    }
    return token;
}
 

private OCSPResp b64ToOCSPResp(String ocspRespB64)
{
  try
  {
    return new OCSPResp(Base64.decodeBase64(ocspRespB64));
  }
  catch (Throwable ex)
  {
    LOGGER.debug("Could not cover OCSP Response from Base64 to OCSPResp object");
    return null;
  }
}
 

public String decryptText(final String encryptedText) {
    if (encryptedText == null || encryptedText.isEmpty()) {
        return encryptedText;
    }

    try {
        final byte[] encryptedBytes = Base64.decodeBase64(encryptedText);
        byte[] iv = Arrays.copyOf(encryptedBytes, this.keyIvPair.getIvSize());
        int maclength = hmacLength(this.authenticationKey);
        byte[] hmac1 = Arrays.copyOfRange(encryptedBytes, encryptedBytes.length - maclength, encryptedBytes.length);
        byte[] ciphertext = Arrays.copyOfRange(encryptedBytes, this.keyIvPair.getIvSize(), encryptedBytes.length - maclength);
        byte[] data = concat(iv, ciphertext);
        byte[] hmac2 = generateHMAC(this.authenticationKey, data);
        if (!Arrays.equals(hmac1, hmac2)) {
            s_logger.error("Incorrect HMAC");
            return null;
        }

        final Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        final SecretKeySpec keySpec = new SecretKeySpec(this.keyIvPair.getKeyBytes(), "AES");
        cipher.init(Cipher.DECRYPT_MODE, keySpec, new IvParameterSpec(this.keyIvPair.getIvBytes()));

        return new String(cipher.doFinal(ciphertext));
    } catch (Exception e) {
        s_logger.error("Unexpected exception ", e);
        return null;
    }
}
 

/**
 * This utility method serializes ElementPair into JSON + packs it into Base64-encoded string
 *
 * @return
 */
protected String toEncodedJson() {
    ObjectMapper mapper = SequenceElement.mapper();
    Base64 base64 = new Base64(Integer.MAX_VALUE);
    try {
        String json = mapper.writeValueAsString(this);
        String output = base64.encodeAsString(json.getBytes("UTF-8"));
        return output;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}
 

public VMInstanceVO(long id, long serviceOfferingId, String name, String instanceName, Type type, Long vmTemplateId, HypervisorType hypervisorType, long guestOSId,
                    long domainId, long accountId, long userId, boolean haEnabled) {
    this.id = id;
    hostName = name != null ? name : uuid;
    if (vmTemplateId != null) {
        templateId = vmTemplateId;
    }
    this.instanceName = instanceName;
    this.type = type;
    this.guestOSId = guestOSId;
    this.haEnabled = haEnabled;
    state = State.Stopped;
    this.accountId = accountId;
    this.domainId = domainId;
    this.serviceOfferingId = serviceOfferingId;
    this.hypervisorType = hypervisorType;
    this.userId = userId;
    limitCpuUse = false;
    try {
        SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
        byte[] randomBytes = new byte[16];
        random.nextBytes(randomBytes);
        vncPassword = Base64.encodeBase64URLSafeString(randomBytes);
    } catch (NoSuchAlgorithmException e) {
        s_logger.error("Unexpected exception in SecureRandom Algorithm selection ", e);
    }
}
 

public static void main(String[] args) throws Exception {
    if ("-crypt".equals(args[0])) {
        System.out.println(HashCrypt.cryptUTF8(args[1], null, args[2]));
    } else if ("-digest".equals(args[0])) {
        String digest = HashCrypt.digestHash("SHA", null, args[1]);
        System.out.println(digest);
    } else if ("-kek".equals(args[0])) {
        AesCipherService cs = new AesCipherService();
        System.out.println(Base64.encodeBase64String(cs.generateNewKey().getEncoded()));
    // SCIPIO: 2018-09-07: DISABLED generating new DES keys - DES is insecure
    // and the DES code in Scipio should only be used to decrypt existing records.
    //} else if ("-kek-old".equals(args[0])) {
    //    System.out.println(Base64.encodeBase64String(DesCrypt.generateKey().getEncoded()));
    }
}
 

/**
 * 1. Signs a string with a secret key using SHA-1 2. Base64 encode the result 3. URL encode the final result
 *
 * @param request
 * @param key
 * @return
 */
public static String signRequest(String request, String key) {
    try {
        Mac mac = Mac.getInstance("HmacSHA1");
        SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "HmacSHA1");
        mac.init(keySpec);
        mac.update(request.getBytes());
        byte[] encryptedBytes = mac.doFinal();
        return URLEncoder.encode(Base64.encodeBase64String(encryptedBytes), "UTF-8");
    } catch (Exception ex) {
        System.out.println(ex);
    }
    return null;
}
 

public static String generateDynamicKey(String appID, String appCertificate, String channel, int ts, int salt, long uid, int expiredTs, TreeMap<Short, String> extra, short service) throws Exception {
    String signature = generateSignature(appCertificate, service, appID, ts, salt, channel, uid, expiredTs, extra);
    DynamicKey5Content content = new DynamicKey5Content(service, signature, new Hex().decode(appID.getBytes()), ts, salt, expiredTs, extra);
    byte[] bytes = pack(content);
    byte[] encoded = new Base64().encode(bytes);
    String base64 = new String(encoded);
    return version + base64;
}
 

private void writeImages( )
{
	for ( String uri : imageSrc )
	{
		String imageType = uri.substring( uri.indexOf( '.' ) + 1 );
		mhtPartWriter.println( );
		mhtPartWriter.println( "--" + BOUNDARY );
		mhtPartWriter.println( "Content-Type: image/" + imageType );
		mhtPartWriter.println( "Content-Transfer-Encoding: base64" );
		mhtPartWriter.println( "Content-Location:" + uri );
		mhtPartWriter.println( );

		try
		{
			byte[] data = EmitterUtil.getImageData( uri );
			if ( data != null && data.length != 0 )
			{
				Base64 base = new Base64( );
				String pic2Text = new String( base.encode( data ) );
				mhtPartWriter.println( pic2Text );
			}
		}
		catch ( IOException e )
		{
			logger.log( Level.WARNING, e.getLocalizedMessage( ) );
		}
	}
	mhtPartWriter.println( );
	mhtPartWriter.println( "--" + BOUNDARY + "--" );
}
 

/**
 * 
 * This method generates keys. This method is implementation specific and should not be present in any general purpose interface
 * extracted from this class.
 * 
 * @return
 * @throws Exception
 */
public static String generateEncodedKey() throws Exception {
    KeyGenerator keygen = KeyGenerator.getInstance("DES");
    SecretKey desKey = keygen.generateKey();

    // Create the cipher
    Cipher cipher = Cipher.getInstance(ALGORITHM);
    cipher.init((Cipher.WRAP_MODE), desKey);

    SecretKeyFactory desFactory = SecretKeyFactory.getInstance("DES");
    DESKeySpec desSpec = (DESKeySpec) desFactory.getKeySpec(desKey, javax.crypto.spec.DESKeySpec.class);
    byte[] rawDesKey = desSpec.getKey();

    return new String(Base64.encodeBase64(rawDesKey));
}